Side by side

Seestern Sub 300 V4vsTudor Black Bay 58 Bronze

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Sub 300 V4
SeesternSub 300 V4
MSRP $10
Black Bay 58 Bronze
TudorBlack Bay 58 Bronze
MSRP $5,850

At a glance

17 of 29 specs differ
Diameter
Sub 300 V442mm
Black Bay 58 Bronze39mm
Power Reserve
Sub 300 V441h
Black Bay 58 Bronze70h
Water Resistance
Sub 300 V4200m
Black Bay 58 Bronze200m
MSRP
Sub 300 V4$10
Black Bay 58 Bronze$5,850

Full specifications

Case

5 specs
Diameter
42mm
39mm
Thickness
13mm
11.9mm
Material
316L Stainless Steel
Bronze
Finish
Brushed + Sandblasted
Brushed + Satin
Caseback
Solid screw-down
Engraved

Crystal & Dial

4 specs
Crystal Shape
Flat
AR Coating
Underside
Dial Color
Orange
Black
Lume
Japan Lume (blue glow)
None

Movement

7 specs
Caliber
Seiko NH35A
MT5400
Beat Rate
21,600 vph
0 vph
Power Reserve
41h
70h
Jewels
24
0
Hacking
Yes
No
Hand-winding
Yes
No
Complications
GMT, Date
None

Pricing

1 specs
MSRP
$10
$5,850

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Seestern Sub 300 V4

Owners widely praise the Seestern Sub 300 V4 for its terrific fit and finish and surprising little touches at its $179 price, noting top-notch case, dial, bezel, and crystal. The bracelet is considered nice enough for the price point, and the watch is powered by the solid and reliable Seiko NH35 movement. Some owners report that the polished sides of the case show signs of wear. Overall, owners rate the Seestern Sub 300 V4 highly for its excellent case, dial, and bezel finishing at the price.

Tudor Black Bay 58 Bronze

The Tudor Black Bay 58 Bronze is widely praised for its unique, evolving aesthetic driven by its developing bronze patina, which owners describe as an incremental pleasure and a conversation starter. Reviewers highlight its warm, vintage feel, achieved through the aging bronze case, root-beer brown bezel, and rose gold-toned dive scale, complemented by applied Arabic numerals on a 39mm case. The MT5400 movement is noted for its 70-hour power reserve and COSC-certified accuracy, with one owner reporting a net loss of about one second every three days. The bezel action is described as firm and reassuring, tighter than steel Black Bay models. Owners report the watch wears well dressed up or down, and its finishing is favorably compared to higher-end brands. However, some owners note the soft bronze case scratches easily and can cause blueing on the wrist in hot weather.

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